1.
Transfer components from the existing system board to the replacement system board, if applicable.
2.
Orient the system board assembly by aligning the notches on the bottom of the assembly with the tabs on the computer.
3.
Slide the system board assembly toward the back of the computer until the assembly clicks into place.
4.
Replace the two screws to secure the system board assembly to the chassis.
5.
Align the screw holes on the card fan assembly with the screw holes on the system board assembly, then replace the two screws to secure the card fan
assembly.
6.
Connect the fan cable to the FAN_CAGE connector on the system board (see
System Board Components
).
7.
Replace any expansion cards that you removed (see
Installing PCI and PCI Express Cards
).
8.
Replace any additional components that you removed from the system board.
9.
Reconnect all cables to the system board.
10.
Replace the computer cover (see
Replacing the Computer Cover
).
11.
Connect your computer and devices to electrical outlets, and then turn them on.
12.
Flash the system BIOS, as needed.
Power Supply
Power Supply (PSU) DC Connector Pin Assignments
NOTICE:
The system board and metal tray are connected and are installed as one piece.
NOTICE:
If you are replacing the system board, visually compare the replacement system board to the existing system board to make sure that you
have the correct part.
NOTE:
Some components and connectors on replacement system boards may be in different locations than corresponding connectors on the existing
system board.
NOTE:
Jumper settings on replacement system boards are preset by the factory.
NOTICE:
To connect a network cable, first plug the cable into the network port or device and then plug it into your computer.
NOTE:
For information on flashing the system BIOS, see
support.dell.com
.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
